TERMINALS OF ECU
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
*A |
Main Body ECU (Multiplex Network Body ECU) with 1 Connector |
- |
- |
*A |
Main Body ECU (Multiplex Network Body ECU) with 2 Connectors |
- |
- |
(a) Disconnect the main body ECU (multiplex network body ECU) connectors.
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(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
MB-31 (BECU) - Body ground |
- |
Battery power supply |
Always |
11 to 14 V |
MB-32 (IG) - Body ground |
- |
Ignition power supply (IG signal) |
Ignition switch ON → off |
11 to 14 V → Below 1 V |
MB-30 (ACC) - Body ground |
- |
Ignition power supply (ACC signal) |
Ignition switch ACC → off |
11 to 14 V → Below 1 V |
MB-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
MB-18 (DBKL) - Body ground |
- |
Driver seat belt buckle switch signal |
Driver seat belt fastened |
10 kΩ or higher |
Driver seat belt unfastened |
Below 1 Ω |
|||
MB-2 (RCTY) - Body ground |
- |
Rear door courtesy light switch RH input |
Rear door LH closed (OFF) |
10 kΩ or higher |
Rear door LH open (ON) |
Below 1 Ω |
|||
MB-13 (LCTY) - Body ground |
- |
Rear door courtesy light switch LH input |
Rear door RH closed (OFF) |
10 kΩ or higher |
Rear door RH open (ON) |
Below 1 Ω |
CHECK COMBINATION METER ASSEMBLY
(a) Disconnect the F4 combination meter assembly connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F4-40 (B) - Body ground |
SB - Body ground |
Battery power supply |
Always |
11 to 14 V |
F4-39 (IG+) - Body ground |
P - Body ground |
IG power supply |
Ignition switch ON → off |
11 to 14 V → Below 1 V |
F4-21 (ET) - Body ground |
W- B - Body ground |
Ground |
Always |
Below 1 Ω |
F4-7 (PKBI) - Body ground |
GR - Body ground |
Front passenger seat belt buckle switch signal |
Ignition switch ON, front passenger side seat belt fastened and front passenger seat occupied |
10 kΩ or higher |
Ignition switch ON, front passenger side seat belt unfastened and front passenger seat occupied |
Below 1 Ω |
Toyota CH-R Service Manual > Power Window Control System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Power Window Control System
DTC No.
Detection Item
Link
B2311
Power Window Motor Malfunction
B2311
Power Window Motor Malfunction
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Toyota CH-R Service Manual > Smart Key System(for Entry Function): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the smart key system (for Entry
Function).
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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